@book{146096,
	author = {Woodburne, Michael O. and ebrary, Inc.},
	title = {Late Cretaceous and Cenozoic mammals of North America},
	publisher = {Columbia University Press,},
	year = {c2004.},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10183468}
}